How does your city stack up among fittest communities?

For the third year in a row the Twin Cities — Minneapolis-St.Paul — are the healthiest, fittest cities in the nation according to an analysis of the 50 most populous metropolitan areas in the U.S.

Released today, the annual American Fitness Index from the American College of Sports Medicine, is based on a number of health behaviors including smoking, exercise, obesity rates, chronic health problems and access to health care. It also looks at the environment including availability of parks, recreational facilities, walking trails and farmers' markets. The fitness index was designed by health and medical experts.

Other top fit cities: Washington, D.C., Portland, San Francisco and Denver.